Richy Werenski was even with Michael Thompson at the start of the day, fell four strokes down at one stage, but caught Thompson again at the end of the day.
Werenski (pictured) birdied three of the last four holes, sinking an eight-foot putt at No. 18 to match Thompson’s 3-under-par 68 in overcast and windy conditions at TPC Twin Cities in Blaine, Minn., and they will enter the final round of the 3M Open tied for the lead.
“I had a three-putt hiccup at No. 5, but did a good job of hanging in there and moving along,” said Werenski, who has won four times as a pro but never on the PGA Tour. “I hit a lot of fairways and greens to give myself some chances.
“Things started clicking again and I gave myself a chance heading into tomorrow. There’s a lot of golf left to be played and I just have to keep myself hanging in there to give myself a chance heading to the last nine holes.
“Then I have to get going and hopefully make some putts.”
Werenski, who held the lead after an opening 63 and was tied with Thompson after 36 holes, was at even par for the day with two birdies and two bogeys before his late birdie run at the finish left him in a tie for the lead at 15-under 198.
Thompson made three straight birdies through No. 7 and another at No. 12 to build his four-shot lead before making his only bogey at No. 17, but saved par to keep his share of the lead after hitting into the water on the final hole.
“That was a nifty par save on the last hole to keep the momentum going,” said Thompson, whose only victory came in the 2013 Honda Classic. “Overall, it was pretty good. I had some nerves early because I haven’t been in this position for a while, but I composed myself and got into a nice groove with those three straight birdies.
“I have to remember what it was like the last time I was in the final group on Sunday. I felt like I was going to win that time, and I did. I have to keep grinding and have a good day.”
Charl Schwartzel of South Africa, the 2011 Masters champion, sank a 34-foot eagle putt on the sixth hole en route to a 66 and is two strokes back in a tie for third with Tony Finau, who is in the hunt for the second straight week after a 69, while Max Homa of Valencia and Cal collected five birdies on the back nine in a 64 and is three shots behind in fifth.
Cameron Tringale of Laguna Niguel posted a 63 with the help of a 22-foot eagle putt at No. 16 and is one more down in a tie for sixth with Denny McCarthy (64), Alex Noren (66) of Sweden, Nick Watney of Davis and Fresno State (68), Harris English (67), Ryan Moore (67) and Cameron Davis (69) of Australia.
Defending champion Matthew Wolff of Agoura Hills shot 70 and is tied for 13th.
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 birdied three of the last four holes, sinking an eight-foot putt at No. 18 to match Thompson’s 3-under-par 68 in overcast and windy conditions at TPC Twin Cities in Blaine, Minn., and they will enter the final round of the 3M Open tied for the lead.){kind=link}